1031223021113 has 4 divisors (see below), whose sum is σ = 1045747289088. Its totient is φ = 1016698753140.

The previous prime is 1031223021091. The next prime is 1031223021139. The reversal of 1031223021113 is 3111203221301.

It is a happy number.

1031223021113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031223021113 - 2¹⁰ = 1031223020089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1031223021173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7262133881 + ... + 7262134022.

It is an arithmetic number, because the mean of its divisors is an integer number (261436822272).

Almost surely, 2^{1031223021113} is an apocalyptic number.

It is an amenable number.

1031223021113 is a deficient number, since it is larger than the sum of its proper divisors (14524267975).

1031223021113 is an equidigital number, since it uses as much as digits as its factorization.

1031223021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14524267974.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031223021113 its reverse (3111203221301), we get a palindrome (4142426242414).

The spelling of 1031223021113 in words is "one trillion, thirty-one billion, two hundred twenty-three million, twenty-one thousand, one hundred thirteen".